<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <!-- 控制元素是否展示 -->
        <!-- v-show
        修改display是否为none -->
        <div v-show="showBol">v-show控制的div</div>

        <!-- v-if
        控制dom节点是否挂载 -->
        <div v-id="ifBol">v-if控制的div</div>
        <div v-for="item in arr" v-show="item < 3">{{item}}</div>
        <button @click="btnClick">click</button>
    </div>

    <script src="js/vue.js"></script>
    <script>
        //数据驱动
        let myApp = new Vue({
            el:'#app',
            data:{
                showBol:true,
                ifBol:true,
                arr:[1,2,3,4,5]
            },
            methods:{
                //btnClick (){
                    // console.log(this.arr);
                // }
                btnClick:function(){
                    console.log(this.arr)
                }
            }
        })

    </script>
</body>
</html>